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公开(公告)号：US11453728B2
公开(公告)日：2022-09-27
申请号：US17043376
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is a carboxymethylated microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
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公开(公告)号：US20210115160A1
公开(公告)日：2021-04-22
申请号：US17043376
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is a carboxymethylated microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
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公开(公告)号：US20220153879A1
公开(公告)日：2022-05-19
申请号：US17441356
申请日：2020-03-05
IPC分类号： C08B11/12
摘要： Provided is a fibrillated chemically modified cellulose fiber, which has a type-I cellulose crystallinity of at least 50%, an anionic charge density of 0.10-2.00 meq/g, and an average fiber diameter of greater than 500 nm. Also, provided is a fibrillated chemically modified cellulose fiber, wherein the value (A/B) obtained by dividing the viscosity A measured at a shear rate of 0.01/sec by the viscosity B measured at a shear rate of 1000/sec in an aqueous dispersion having a solid content of 1 mass % is at least 100. These fibers have high water retention and high thixotropy.
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公开(公告)号：US20210131036A1
公开(公告)日：2021-05-06
申请号：US17042302
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.
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公开(公告)号：US11560672B2
公开(公告)日：2023-01-24
申请号：US17042506
申请日：2019-02-21
摘要： The present invention aims to develop a technique for efficiently preparing deinked pulp from prints made with UV-curable inks. According to the processes for preparing deinked pulp of the present invention, high quality deinked pulp can be obtained by performing the steps of: disintegrating printed waste paper containing UV prints in water to give a waste paper slurry; and applying a mechanical process to the waste paper slurry using a rotary disintegrator.
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公开(公告)号：US11525015B2
公开(公告)日：2022-12-13
申请号：US17043168
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
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公开(公告)号：US20210238313A1
公开(公告)日：2021-08-05
申请号：US17042310
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is a CM-modified microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.
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公开(公告)号：US11512432B2
公开(公告)日：2022-11-29
申请号：US17042302
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.
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公开(公告)号：US11466405B2
公开(公告)日：2022-10-11
申请号：US17042310
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is a CM-modified microfibrillated cellulose fiber having a Canada standard freeness of not less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber enhances paper strength when added to a paper.
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公开(公告)号：US20210131037A1
公开(公告)日：2021-05-06
申请号：US17043168
申请日：2019-03-28
发明人： Masato Takayama , Yoshihiro Aoki , Takanori Otsuhata , Takeo Izumiya , Hiroyuki Okumura , Tomonori Kawamata , Ryo Sotooka
摘要： Provided is an oxidized microfibrillated cellulose fiber having a Canada standard freeness of less than 200 mL and an average fiber diameter of not less than 500 nm. Said fiber provides a composition having excellent water retention ability.
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